and he just got a phone call from president obama. serious concerns about syria and its chemical weapons. >> it's one of the deadliest nerve agents in all the world. now, officials say the syrian regime has prepared its saran gas and could possibly use it against its own people. the whole world is watching. the whole world is is watching very closely. >> they must not think about deploying these things. >> shepard: but what will it take to make a dictator back down? cops finally catch up with millionaire software mogul john mcafee. >> they are trying to arrest me for coming into the country illegal. >> shepard: they did. and then it got even weirder. tonight, what put mcafee in the hospital. but first from fox this thursday night. saran gas. a deadly nerve agent so deadly, in fact, a single drop could kill new a matter of minutes. and right now we're waiting to see whether the syrian president bashar assad is insane enough or evil enough to ignore warnings from the entire world and unleash that banned chemical weapon against his own p